Featured image: All images: Illustration: JoAnna Wendel
JoAnna Wendel is a science cartoonist and writer in Washington, DC. She loves space, planets, rocks, and her cat, Pancake. You can find her work at joannawendelcomics.com and follow her on Twitter at @JoAnnaScience.
Kate Wheeling is an environmental journalist based in California. Follow her on Twitter at @KateWheeling.